/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2018/Problem12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 18:04:25,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 18:04:25,410 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 18:04:25,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 18:04:25,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 18:04:25,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 18:04:25,429 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 18:04:25,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 18:04:25,430 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 18:04:25,430 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 18:04:25,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 18:04:25,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 18:04:25,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 18:04:25,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 18:04:25,432 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 18:04:25,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 18:04:25,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 18:04:25,433 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 18:04:25,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 18:04:25,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 18:04:25,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 18:04:25,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 18:04:25,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 18:04:25,434 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 18:04:25,434 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 18:04:25,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 18:04:25,435 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 18:04:25,435 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 18:04:25,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 18:04:25,435 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 18:04:25,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 18:04:25,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 18:04:25,436 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 18:04:25,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 18:04:25,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 18:04:25,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 18:04:25,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 18:04:25,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 18:04:25,437 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 18:04:25,437 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 18:04:25,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 18:04:25,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 18:04:25,438 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 18:04:25,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 18:04:25,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 18:04:25,438 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 18:04:25,438 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 18:04:25,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 18:04:25,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 18:04:25,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 18:04:25,606 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 18:04:25,606 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 18:04:25,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2018/Problem12.c [2023-12-22 18:04:26,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 18:04:27,289 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 18:04:27,289 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem12.c [2023-12-22 18:04:27,344 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a548e13c/e664864285764c359188702c13260f50/FLAG38110b352 [2023-12-22 18:04:27,359 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a548e13c/e664864285764c359188702c13260f50 [2023-12-22 18:04:27,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 18:04:27,364 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 18:04:27,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 18:04:27,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 18:04:27,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 18:04:27,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:04:27" (1/1) ... [2023-12-22 18:04:27,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1669c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:27, skipping insertion in model container [2023-12-22 18:04:27,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:04:27" (1/1) ... [2023-12-22 18:04:27,548 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 18:04:27,729 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem12.c[778,791] [2023-12-22 18:04:27,747 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem12.c[817,830] [2023-12-22 18:04:30,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 18:04:30,938 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 18:04:30,948 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem12.c[778,791] [2023-12-22 18:04:30,949 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem12.c[817,830] [2023-12-22 18:04:31,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 18:04:32,078 INFO L206 MainTranslator]: Completed translation [2023-12-22 18:04:32,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32 WrapperNode [2023-12-22 18:04:32,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 18:04:32,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 18:04:32,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 18:04:32,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 18:04:32,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:32,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:33,216 INFO L138 Inliner]: procedures = 353, calls = 5526, calls flagged for inlining = 234, calls inlined = 234, statements flattened = 43807 [2023-12-22 18:04:33,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 18:04:33,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 18:04:33,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 18:04:33,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 18:04:33,227 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:33,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:33,435 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:33,701 INFO L175 MemorySlicer]: Split 5143 memory accesses to 26 slices as follows [226, 30, 244, 32, 96, 264, 58, 2, 600, 38, 558, 93, 58, 68, 56, 257, 92, 540, 28, 82, 520, 353, 149, 75, 83, 541]. 12 percent of accesses are in the largest equivalence class. The 319 initializations are split as follows [18, 18, 18, 18, 8, 18, 8, 2, 15, 18, 8, 8, 8, 18, 8, 18, 8, 8, 18, 18, 8, 8, 8, 8, 18, 8]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-22 18:04:33,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:33,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:34,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:34,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:34,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:34,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:34,507 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 18:04:34,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 18:04:34,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 18:04:34,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 18:04:34,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (1/1) ... [2023-12-22 18:04:34,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 18:04:34,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 18:04:34,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 18:04:34,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-22 18:04:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#17 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#18 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#19 [2023-12-22 18:04:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#20 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#21 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#22 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#23 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#24 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#25 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-22 18:04:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-22 18:04:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#20 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#21 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#22 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#23 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#24 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#25 [2023-12-22 18:04:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2023-12-22 18:04:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#14 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#15 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#16 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#17 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#18 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#19 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#20 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#21 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#22 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#23 [2023-12-22 18:04:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#24 [2023-12-22 18:04:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#25 [2023-12-22 18:04:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 18:04:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_a [2023-12-22 18:04:34,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_a [2023-12-22 18:04:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_b [2023-12-22 18:04:34,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_b [2023-12-22 18:04:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 18:04:34,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 18:04:36,090 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 18:04:36,092 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 18:08:05,441 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 18:08:05,582 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 18:08:05,582 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 18:08:05,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:08:05 BoogieIcfgContainer [2023-12-22 18:08:05,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 18:08:05,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 18:08:05,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 18:08:05,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 18:08:05,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:04:27" (1/3) ... [2023-12-22 18:08:05,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c51ed19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:08:05, skipping insertion in model container [2023-12-22 18:08:05,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:04:32" (2/3) ... [2023-12-22 18:08:05,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c51ed19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:08:05, skipping insertion in model container [2023-12-22 18:08:05,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:08:05" (3/3) ... [2023-12-22 18:08:05,591 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12.c [2023-12-22 18:08:05,603 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 18:08:05,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 18:08:05,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 18:08:05,752 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e1bf63c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 18:08:05,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 18:08:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 9308 states, 9203 states have (on average 1.5516679343692275) internal successors, (14280), 9205 states have internal predecessors, (14280), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-22 18:08:05,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-22 18:08:05,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:08:05,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:08:05,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION === [reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION, reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:08:05,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:08:05,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1986984423, now seen corresponding path program 1 times [2023-12-22 18:08:05,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:08:05,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384343824] [2023-12-22 18:08:05,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:08:05,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:08:05,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:08:05,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:08:05,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 18:08:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:08:07,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 18:08:07,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:08:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:08:07,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:08:07,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:08:07,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384343824] [2023-12-22 18:08:07,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384343824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:08:07,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:08:07,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 18:08:07,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660544536] [2023-12-22 18:08:07,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:08:07,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 18:08:07,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:08:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 18:08:07,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 18:08:07,438 INFO L87 Difference]: Start difference. First operand has 9308 states, 9203 states have (on average 1.5516679343692275) internal successors, (14280), 9205 states have internal predecessors, (14280), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:08:12,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:13,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:15,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:17,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:19,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:27,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:28,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:31,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:34,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:36,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:37,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:40,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:42,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:47,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:49,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:51,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:53,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:08:55,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:09:06,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:09:08,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:09:11,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:09:16,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:09:20,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:09:38,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:10:16,273 INFO L93 Difference]: Finished difference Result 25314 states and 39518 transitions. [2023-12-22 18:10:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 18:10:16,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-22 18:10:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:10:16,334 INFO L225 Difference]: With dead ends: 25314 [2023-12-22 18:10:16,334 INFO L226 Difference]: Without dead ends: 16003 [2023-12-22 18:10:16,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 18:10:16,366 INFO L413 NwaCegarLoop]: 19040 mSDtfsCounter, 10314 mSDsluCounter, 32791 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10314 SdHoareTripleChecker+Valid, 51831 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128.3s IncrementalHoareTripleChecker+Time [2023-12-22 18:10:16,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10314 Valid, 51831 Invalid, 1014 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 128.3s Time] [2023-12-22 18:10:16,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16003 states. [2023-12-22 18:10:16,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16003 to 15831. [2023-12-22 18:10:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15831 states, 15729 states have (on average 1.557314514590883) internal successors, (24495), 15828 states have internal predecessors, (24495), 100 states have call successors, (100), 2 states have call predecessors, (100), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:10:16,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15831 states to 15831 states and 24595 transitions. [2023-12-22 18:10:16,943 INFO L78 Accepts]: Start accepts. Automaton has 15831 states and 24595 transitions. Word has length 38 [2023-12-22 18:10:16,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:10:16,943 INFO L495 AbstractCegarLoop]: Abstraction has 15831 states and 24595 transitions. [2023-12-22 18:10:16,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:10:16,944 INFO L276 IsEmpty]: Start isEmpty. Operand 15831 states and 24595 transitions. [2023-12-22 18:10:16,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-22 18:10:16,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:10:16,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:10:16,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 18:10:17,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:10:17,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION === [reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION, reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:10:17,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:10:17,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2033223259, now seen corresponding path program 1 times [2023-12-22 18:10:17,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:10:17,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397886022] [2023-12-22 18:10:17,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:10:17,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:10:17,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:10:17,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:10:17,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 18:10:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:10:18,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-22 18:10:18,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:10:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:10:19,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:10:19,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:10:19,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397886022] [2023-12-22 18:10:19,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397886022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:10:19,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:10:19,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 18:10:19,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820306063] [2023-12-22 18:10:19,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:10:19,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 18:10:19,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:10:19,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 18:10:19,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 18:10:19,309 INFO L87 Difference]: Start difference. First operand 15831 states and 24595 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:10:22,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:31,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:33,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:37,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:43,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:44,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:48,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:54,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:10:57,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:02,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:05,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:08,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:09,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:11,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:32,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:41,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:47,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:11:58,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:12:01,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:12:02,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:12:08,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:12:37,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:13:08,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:13:11,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:13:14,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:13:32,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:29,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:14:29,935 INFO L93 Difference]: Finished difference Result 41607 states and 64649 transitions. [2023-12-22 18:14:29,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 18:14:29,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-22 18:14:29,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:14:30,008 INFO L225 Difference]: With dead ends: 41607 [2023-12-22 18:14:30,009 INFO L226 Difference]: Without dead ends: 25777 [2023-12-22 18:14:30,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-22 18:14:30,027 INFO L413 NwaCegarLoop]: 19751 mSDtfsCounter, 14652 mSDsluCounter, 49274 mSDsCounter, 0 mSdLazyCounter, 9560 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14652 SdHoareTripleChecker+Valid, 69025 SdHoareTripleChecker+Invalid, 9795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 9560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 249.4s IncrementalHoareTripleChecker+Time [2023-12-22 18:14:30,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14652 Valid, 69025 Invalid, 9795 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [235 Valid, 9560 Invalid, 0 Unknown, 0 Unchecked, 249.4s Time] [2023-12-22 18:14:30,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25777 states. [2023-12-22 18:14:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25777 to 21858. [2023-12-22 18:14:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21858 states, 21756 states have (on average 1.550101121529693) internal successors, (33724), 21855 states have internal predecessors, (33724), 100 states have call successors, (100), 2 states have call predecessors, (100), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:14:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21858 states to 21858 states and 33824 transitions. [2023-12-22 18:14:30,534 INFO L78 Accepts]: Start accepts. Automaton has 21858 states and 33824 transitions. Word has length 38 [2023-12-22 18:14:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:14:30,535 INFO L495 AbstractCegarLoop]: Abstraction has 21858 states and 33824 transitions. [2023-12-22 18:14:30,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:14:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 21858 states and 33824 transitions. [2023-12-22 18:14:30,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 18:14:30,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:14:30,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:14:30,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 18:14:30,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:14:30,761 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION === [reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION, reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:14:30,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:14:30,763 INFO L85 PathProgramCache]: Analyzing trace with hash -813076974, now seen corresponding path program 1 times [2023-12-22 18:14:30,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:14:30,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164826926] [2023-12-22 18:14:30,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:14:30,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:14:30,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:14:30,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:14:30,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 18:14:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:14:32,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 18:14:32,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:14:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:14:32,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:14:32,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:14:32,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164826926] [2023-12-22 18:14:32,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164826926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:14:32,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:14:32,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 18:14:32,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257056217] [2023-12-22 18:14:32,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:14:32,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 18:14:32,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:14:32,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 18:14:32,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 18:14:32,574 INFO L87 Difference]: Start difference. First operand 21858 states and 33824 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:14:34,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:35,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:37,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:38,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:40,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:42,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:46,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:48,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:51,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:14:55,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:01,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:02,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:04,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:05,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:07,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:09,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:14,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:25,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:26,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:27,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:33,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:35,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:43,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:46,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:53,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:15:57,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:07,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:09,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:13,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:24,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:37,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:39,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:46,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:48,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:50,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:16:52,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:17:07,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:17:48,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:17:48,401 INFO L93 Difference]: Finished difference Result 65572 states and 101470 transitions. [2023-12-22 18:17:48,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 18:17:48,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-12-22 18:17:48,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:17:48,459 INFO L225 Difference]: With dead ends: 65572 [2023-12-22 18:17:48,460 INFO L226 Difference]: Without dead ends: 43715 [2023-12-22 18:17:48,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 18:17:48,481 INFO L413 NwaCegarLoop]: 23862 mSDtfsCounter, 13957 mSDsluCounter, 37570 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 35 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 179.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13957 SdHoareTripleChecker+Valid, 61432 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 195.2s IncrementalHoareTripleChecker+Time [2023-12-22 18:17:48,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13957 Valid, 61432 Invalid, 1916 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [35 Valid, 1879 Invalid, 2 Unknown, 0 Unchecked, 195.2s Time] [2023-12-22 18:17:48,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43715 states. [2023-12-22 18:17:49,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43715 to 43557. [2023-12-22 18:17:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43557 states, 43455 states have (on average 1.5496950868714763) internal successors, (67342), 43554 states have internal predecessors, (67342), 100 states have call successors, (100), 2 states have call predecessors, (100), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:17:49,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43557 states to 43557 states and 67442 transitions. [2023-12-22 18:17:49,303 INFO L78 Accepts]: Start accepts. Automaton has 43557 states and 67442 transitions. Word has length 61 [2023-12-22 18:17:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:17:49,303 INFO L495 AbstractCegarLoop]: Abstraction has 43557 states and 67442 transitions. [2023-12-22 18:17:49,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:17:49,304 INFO L276 IsEmpty]: Start isEmpty. Operand 43557 states and 67442 transitions. [2023-12-22 18:17:49,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-22 18:17:49,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:17:49,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:17:49,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 18:17:49,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:17:49,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION === [reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION, reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:17:49,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:17:49,535 INFO L85 PathProgramCache]: Analyzing trace with hash -6549267, now seen corresponding path program 1 times [2023-12-22 18:17:49,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:17:49,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138106969] [2023-12-22 18:17:49,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:17:49,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:17:49,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:17:49,537 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:17:49,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 18:17:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:17:51,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 18:17:51,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:17:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:17:51,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:17:51,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:17:51,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138106969] [2023-12-22 18:17:51,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138106969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:17:51,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:17:51,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 18:17:51,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018449225] [2023-12-22 18:17:51,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:17:51,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 18:17:51,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:17:51,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 18:17:51,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 18:17:51,776 INFO L87 Difference]: Start difference. First operand 43557 states and 67442 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:17:54,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:17:56,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:03,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:04,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:06,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:09,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:13,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:16,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:23,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:27,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:29,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:31,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:37,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:38,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:40,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:45,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:48,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-22 18:18:50,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 18:18:55,187 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 18:18:55,187 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 18:18:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 18:18:55,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-22 18:18:55,244 INFO L413 NwaCegarLoop]: 4498 mSDtfsCounter, 3561 mSDsluCounter, 15739 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3561 SdHoareTripleChecker+Valid, 20237 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.0s IncrementalHoareTripleChecker+Time [2023-12-22 18:18:55,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3561 Valid, 20237 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 63.0s Time] [2023-12-22 18:18:55,246 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 18:18:55,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 18:18:55,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:18:55,448 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (43557states) and FLOYD_HOARE automaton (currently 8 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (9934 states constructed, input type IntersectNwa). [2023-12-22 18:18:55,449 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 18:18:55,451 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-22 18:18:55,453 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 18:18:55,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:18:55 BoogieIcfgContainer [2023-12-22 18:18:55,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 18:18:55,455 INFO L158 Benchmark]: Toolchain (without parser) took 868091.03ms. Allocated memory was 280.0MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 201.0MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 667.7MB. Max. memory is 8.0GB. [2023-12-22 18:18:55,455 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 179.3MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 18:18:55,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4714.75ms. Allocated memory was 280.0MB in the beginning and 417.3MB in the end (delta: 137.4MB). Free memory was 201.0MB in the beginning and 259.3MB in the end (delta: -58.3MB). Peak memory consumption was 216.3MB. Max. memory is 8.0GB. [2023-12-22 18:18:55,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 1135.13ms. Allocated memory was 417.3MB in the beginning and 834.7MB in the end (delta: 417.3MB). Free memory was 259.3MB in the beginning and 608.5MB in the end (delta: -349.2MB). Peak memory consumption was 152.6MB. Max. memory is 8.0GB. [2023-12-22 18:18:55,456 INFO L158 Benchmark]: Boogie Preprocessor took 1290.14ms. Allocated memory was 834.7MB in the beginning and 1.7GB in the end (delta: 834.7MB). Free memory was 608.5MB in the beginning and 1.4GB in the end (delta: -762.8MB). Peak memory consumption was 149.4MB. Max. memory is 8.0GB. [2023-12-22 18:18:55,456 INFO L158 Benchmark]: RCFGBuilder took 211074.16ms. Allocated memory was 1.7GB in the beginning and 2.9GB in the end (delta: 1.3GB). Free memory was 1.4GB in the beginning and 2.4GB in the end (delta: -1.1GB). Peak memory consumption was 394.8MB. Max. memory is 8.0GB. [2023-12-22 18:18:55,456 INFO L158 Benchmark]: TraceAbstraction took 649869.50ms. Allocated memory is still 2.9GB. Free memory was 2.4GB in the beginning and 2.2GB in the end (delta: 240.6MB). Peak memory consumption was 239.1MB. Max. memory is 8.0GB. [2023-12-22 18:18:55,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 179.3MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4714.75ms. Allocated memory was 280.0MB in the beginning and 417.3MB in the end (delta: 137.4MB). Free memory was 201.0MB in the beginning and 259.3MB in the end (delta: -58.3MB). Peak memory consumption was 216.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 1135.13ms. Allocated memory was 417.3MB in the beginning and 834.7MB in the end (delta: 417.3MB). Free memory was 259.3MB in the beginning and 608.5MB in the end (delta: -349.2MB). Peak memory consumption was 152.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 1290.14ms. Allocated memory was 834.7MB in the beginning and 1.7GB in the end (delta: 834.7MB). Free memory was 608.5MB in the beginning and 1.4GB in the end (delta: -762.8MB). Peak memory consumption was 149.4MB. Max. memory is 8.0GB. * RCFGBuilder took 211074.16ms. Allocated memory was 1.7GB in the beginning and 2.9GB in the end (delta: 1.3GB). Free memory was 1.4GB in the beginning and 2.4GB in the end (delta: -1.1GB). Peak memory consumption was 394.8MB. Max. memory is 8.0GB. * TraceAbstraction took 649869.50ms. Allocated memory is still 2.9GB. Free memory was 2.4GB in the beginning and 2.2GB in the end (delta: 240.6MB). Peak memory consumption was 239.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was constructing difference of abstraction (43557states) and FLOYD_HOARE automaton (currently 8 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (9934 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 14). Cancelled while NwaCegarLoop was constructing difference of abstraction (43557states) and FLOYD_HOARE automaton (currently 8 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (9934 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 9308 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 649.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 639.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 42484 SdHoareTripleChecker+Valid, 635.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42484 mSDsluCounter, 202525 SdHoareTripleChecker+Invalid, 581.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135374 mSDsCounter, 280 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13273 IncrementalHoareTripleChecker+Invalid, 13555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 280 mSolverCounterUnsat, 67151 mSDtfsCounter, 13273 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43557occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 3 MinimizatonAttempts, 4249 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 647 SizeOfPredicates, 29 NumberOfNonLiveVariables, 2721 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown